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techtalk:ref:engmech04 [2019/08/18 04:41] hippysmack [Why Oil Pukes Out the Air Cleaner] |
techtalk:ref:engmech04 [2019/08/18 06:06] hippysmack [Testing the Head Drains] |
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| ===== Breather Catch Can Test For Oil Leaks Out the Vent ===== | ===== Breather Catch Can Test For Oil Leaks Out the Vent ===== | ||
| - | A test was done by XLFORUM member cjburr. Test apparatus and results are below. \\ | + | A test was done by XLFORUM member cjburr. Test apparatus and results are below. ((cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=13)) \\ |
| This testing was done to help diagnose an oil leak that couldn't be seen or otherwise detected. \\ | This testing was done to help diagnose an oil leak that couldn't be seen or otherwise detected. \\ | ||
| - | However, this is a good exercise if you are concerned about how much oil you may be losing from the crankcase puking. \\ | + | However, this may be a good exercise if you are concerned about how much oil you may be losing from the crankcase puking. \\ |
| + | It should show what, how much and when oil accumulates in the hose / catch can. \\ | ||
| + | The length / size of tubing will change crankcase pressure to an extent so the results may not reflect exactly what's going on inside your engine. \\ | ||
| The vent to air cleaner was inspected and then removed for testing. The factory system routes the breathers to the front of the carb. \\ | The vent to air cleaner was inspected and then removed for testing. The factory system routes the breathers to the front of the carb. \\ | ||
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| Oil was introduced into the head with a with a turkey baster. \\ | Oil was introduced into the head with a with a turkey baster. \\ | ||
| (which is probably a higher volume of oil than it normally sees from the splash oiling) \\ | (which is probably a higher volume of oil than it normally sees from the splash oiling) \\ | ||
| + | However, if the drains were plugged, oil would overfill to the point of spewing oil at the seams and submerge the seals. ((cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=33)) \\ | ||
| | Head ready for testing. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=31)) | Oil poured in and draining. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=31)) |Oil level at the intake valve when it starts to drain to \\ the exhaust side. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=31)) | | | Head ready for testing. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=31)) | Oil poured in and draining. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=31)) |Oil level at the intake valve when it starts to drain to \\ the exhaust side. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=53769&highlight=valve+guide&page=31)) | | ||
